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Ising Ferromagnetism and Domain Morphology in the Fractional Quantum Hall Regime

DOI to cite this document:
Smet, J. H. ; Deutschmann, R. A. ; Wegscheider, Werner ; Abstreiter, Gerhard ; Klitzing, Klaus von
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Date of publication of this fulltext: 30 Nov 2009 13:39


The density driven quantum phase transition between the unpolarized and fully spin polarized ν = 2/3 fractional quantum Hall state is accompanied by hysteresis in accord with 2D Ising ferromagnetism and domain formation. The temporal behavior is reminiscent of the Barkhausen and time-logarithmic magnetic after-effects ubiquitous in familiar ferromagnets. It too suggests domain morphology and, ...


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